App.xaml

<Application
    x:Class="GameLib.Demo.Wpf.App"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="clr-namespace:GameLib.Demo.Wpf"
    xmlns:system="http://schemas.microsoft.com/winfx/2009/xaml">
    <Application.Resources>
        <SolidColorBrush x:Key="NavigationBarBackgroundColor" Color="#0D47A1" />
        <SolidColorBrush x:Key="NavigationBarSelectedItemBackgroundColor" Color="#3162AF" />
        <SolidColorBrush x:Key="NavigationBarForegroundColor" Color="#FFFFFF" />

        <SolidColorBrush x:Key="PrimaryBackgroundColor" Color="#303030" />
        <SolidColorBrush x:Key="PrimaryForegroundColor" Color="#FFFFFF" />

        <SolidColorBrush x:Key="SecondaryBackgroundColor" Color="#333333" />
        <SolidColorBrush x:Key="SecondaryForegroundColor" Color="#7fc9ff" />

        <SolidColorBrush x:Key="ThirdBackgroundColor" Color="#444444" />
        <SolidColorBrush x:Key="ThirdForegroundColor" Color="#bae0ff" />
    </Application.Resources>
</Application>